Moon Knight, the modern hero, is the servant of Khonshu, the Egyptian
god of the moon. Apparently Khonshu has appointed other human agents to
serve him throughout time. So it makes a certain amount of sense that Khonshu
would have activated another human to be his servant during WW2, Egypt
being an important battleground during the War. And, who knows, perhaps
Khonshu appointed still more humans to be his Moon Knights in earlier years
when Egypt was important?